Related-Key Impossible-Differential Attack on Reduced-Round Skinny
نویسندگان
چکیده
At CRYPTO’16, Beierle et al. presented SKINNY, a family of lightweight tweakable block ciphers intended to compete with SIMON. SKINNY can be implemented efficiently in both softand hardware, possesses a SubstitutionPermutation-Network structure, and supports block sizes of 64 and 128 bits as well as key and tweak sizes of 64, 128, 192, and 256 bits. This paper outlines a related-tweakey impossibledifferential attack on 21 rounds of SKINNY-64/128 and two attacks on 22 and 23 rounds of SKINNY-64/128 under the assumption that 48 bits of the tweakey are public.
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